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Taramite [abbr. Trm, Tar ]

Year of discovery: 1923 (Liset eclogite pod, Norway), 1987 (Japan)

Locality list: 7 localities of taramite

• Na₂CaMg²⁺₃Al₄Si₆O₂₂(OH)₂
• [Na⁺][Ca²⁺Na⁺][Mg₃][Al³⁺₂][(OH)₂|(AlSi₃O₁₁)₂]^16-

• Class: Na-Ca amphibole subgroup < w(OH,F,Cl)-dominant amphibole group < Amphibole supergroup
• Class: Ino-Aluminoslicate (Double chain) - Hydroxide

• Na₂ => Ca: Ferro-tschermakite

• Na₂ => Ca: Tschermakite

• Mg => Fe: Ferro-taramite (Series)

• Al => Fe³⁺: Ferri-taramite

• NaAl => CaMg: Pargasite

• NaAl => []Si: Barroisite

• NaSi => CaAl: Sadanagaite

• Al₂ => MgSi: Katophorite

• Al₄ => Mg₂Si₂: Richterite

• Color: Greenish gray
• Streak: Pale green
• Luster: Vitreous
• Diaphaneity: Translucent

• Cleavage: Good on {110} (2 planes, 120 degree)
• Hardness: 5-6

• System: Monoclinic
• Group: 2/m, C2/m
• Lattice: a=9.8, b=17.9, c=5.3, β=104.9

Synonym: Magnesiotaramite